Machine for forming and setting bushings.



' PATEHTEDAPR. 26, 1904.

. I J. JA'GOBSE'N. MACHINE FOR FORMING AND SETTING BUSHINGS.

,i APPLIOAIIQN FILED SEPT 10, 190a.

N0 MODEL.

rm: umws PETERS 00 was PATENTED APR. 26, .1904. J. JAGOBSEN. MACHINE FOR FORMING AND SETTING BUSHINGS.

APPLIGATIQN FILED SEPT 10, 1903. I

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No. 758,364. PATENTED APR 26, 1904.

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MACHINE FOR FORMING AND SETTING BUSHINGS. APPLIOAIIOH FILED SEPT 10, 1903.

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warmm; v A I H i I Gmzmw UNIT D STATES Patented April 26, 1904:.

PATENT OFFICE.

JACOB JACOBSEN, OF CHICAGO, ILLINOIS.

MACHINE FOR FORMING AND SETTING BUSHINGS.

SPECIFICATION forming part of Letters Patent No. 758,364, dated April 26, 1904:. i

. Application filed September 10, 1903. Serial No. 172,604. (No model.) p I To all whom it may concern:

Beit known that I, JAooB J AGOBSEN, a citi zen of the United States, residing at Chicago, in the county of (look and State of Illinois, have invented new and useful Improvements in Machines for Forming and Setting Bushings, of which the following is a specification.

In making piano-actions the bearing-holes in the pieces known as flanges are lined or hushed with cloth known as bushing-cloth to prevent rattling and noise. In the present state of the art it is customary to insert the wads or pieces of cloth by hand, and inasmuch as the holes are quite small the operation is tedious and slow and results inconsiderable waste of cloth, which is expensive.

It is the object of this invention to remedy these defects by the production of a machine whereby the bushings may be quickly and successfully inserted. I

In the accompanying drawings, Figures 1 and 2 are respectively top .and side views of the part of a piano-action known as the flange. Fig. 3 is a plan view of the machine, showing a flange in position thereon. Fig. I is an end elevation thereof. Figs. 5, 6, and '7 are vertical sectional views on the line :0 w of Fig. 3 with the parts in different positions, and Figs. 8, 9, and are vertical sectional views on the line 3 y of the other figures with the parts in different positions.

Speaking generally, the machine comprises a die which curls or rolls the bushing-wads into small rolls fit to be pushed into the bearing-holes of the flanges, the wads being fed to the die one at a time by suitable feeding mechanism from a magazine. \Vhen rolled into proper shape in the die, the wad is ejected the refrom. by means of a push tube and rod and forced through a tapering tube into the bearing-hole of the flange, the taper of the tube acting. to further curl and compress the wad.

Referring specifically to the drawings, the flange of a piano-action is indicated at 6, the bearing-holes of which are indicatedat 7, lined with the bushing-cloth, as shown at 8, and the machine herein disclosed acts to insert said bushing in said bearing-holes in a manner to be hereinafter described.

The bed-plate of the machine is indicated 1 at 9 and has supported thereon a magazine 10, in which the blanks or wads of bushingecloth, previously out to proper size, arefed downwardly under pressure of a weighted follower 11. Workingunder the lower end andmouth of the magazine between suitable guides 12 on the bed-plate is a sliding feeder 13, operated back and forth by a handle 14:. This feeder feeds the wads one by one through a passage 15 in the die-block 16 to the die 17. This die or cavity is circular in shape, and the wad en ters thesame at the bottom thereof tangentially, so that under pressure of the feeder 13 it curls up around, as clearly. shown in Figs. 5, 6, and 7, in the form of a small tube or bushing, which is then to be inserted in the bearing of the flange. The die opening or cavity 17 is out through the die-blockhorizontally, and on one side thereof is a tube .18ofproper size to fit and work into and throughthe die. This tube is carried by a block 19, sliding between guides 20, secured to the bed-plate. The tube extends through the block, as shown in Figs. 8, 9, and 1 0, and is securely fastened thereto, and when the block is moved back and forth the tube is pushed into and through the die and back. The tube, or at least that portion thereof which enters the die, is split lengthwise, as indicated at 18, so that it may contract and expand to a certain extent, and thusbed-plate under the block. A stop 22 limits the backward movement of the block.

Fitting and slidable within the tube 18 is a rod23, which is considerably longer than the tube and has at the outer end thereof a handle 2 whereby it is operated. This rod may conveniently be formed of stout piano-wire and is substantially the same size as the opening 7 in the flange.

On the side of the die opposite to the tube and rod just described is a block 25, containing a tapering circular tubular channel 26. The block is conveniently formed in two pieces divided at the channel. The larger end of the die, and the small end is adapted to register with the hole 7 of the flange when the flange is placed on the bed-plate besidethe block. Pins 27, projecting from the bed-plate, conveniently gage and indicate the place where the flange is to be put to cause the bearingholes to register with the open end of the channel.

In operation, one of the wads having been fed from the magazine into the die and curled therein to a tubular or annular form, as shown in Fig. 7 the block 19 and tube 18 are pushed forward. The tube passes through the die into the channel, shoving the bushing-wad before it, as indicated in Fig. 9, and the wad is compressed by the taper of the channel 26, and when so advanced as far as possible the rod 23 is pushed forward'through the tube and carries the bushing before it, compressing the same further and projecting it finally into the bearing-hole 7, as shown in Fig. 10. The rod and tube are then retracted and withdrawn from the die for the next operation.

A machine so constructed will operate to bush the parts of piano-actions with great saving of time and material as compared to means heretofore used and without handling the bushings. s

As shown, the machine is operated by hand; but appliances may be constructed to operate some or all of the parts by foot or other power, and hence it is to be understood that the scope of the invention is not limited to the hand-machine disclosed, nor otherwise than is indicated in the following claims.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a machine of the class stated, in combination, adie or former and means to feed the material thereto, acting to shape the material to a bushing, and means to discharge the same from thedie into a hole to be bushed.

2. In a bushing-machine, in combination, a magazine for the blanks, adie or former adapted to shape blanks to the form desired, a passage connecting the magazine and die, a feeder working in the passage and carrying the blanks from the magazine to the die, and means to discharge the bushing from the die into the hole to be hushed:

3. In a bushing-machine, in combination, a magazine for blanks, a circular die having a passage thereto from the magazine, a feeder working in the passage and forcing blanks successively into the die, and means to discharge the bushing from the die into the holeto be bushed. 4

4. In a bushing-machine, in combination, a blank-magazine, a circular former, a passage connecting the magazine and former and entering the latter tangentially, a feeder working in the passage and acting to feed blanks in succession from the magazine to the former, and means to discharge the bushing. from the former into the hole to be bushed.

5. In a bushing-machine, in combination, a tubular die or former open at one end and having a side opening, means to feed a blank through the side opening into the die and shape the same therein, and means to discharge the same from the end of the die into the hole to be bushed.

6. In a bushing-machine, in combination, a tubular die or former open at the ends and at one side, means to feed blanks successively through the side opening and shape the same in the die, and an ejector working through the end opening.

7 In a machine for making bushings, in combination, a magazine for blanks, a passage across the mouth thereof, a former at the end of the passage, a feeder slidable in the passage and adapted to force a blank into the former, and an ejector working in the former.

8. In a bushing-machine, the combination with a die and means to feed blanks thereinto, of a tube into one end of which the die opens, and the other end of which is adapted to register with the hole to be bushed, and an ejector working through the die and tube.

9. In a bushing-machine, the combination with a die and means to feed blanks thereinto, of a tapering tube registering at its larger end with the die, and adapted to register at its smaller end with the hole to be bushed, a tubular ejector working through the die and into the said tapering tube, and a rod working through the ejector and said tube, to discharge bushings from the latter into said hole.

10. In a machine for forming and setting bushings, the combination with a tubular die open at opposite ends, and means to feed blanks thereinto, of a tapering tube registering with one end of the die, and leading to the hole to be bu'shed, and an ejector at the other end of the die, slidable through the die and tube.

11. In a bushing-machine, the combination with a forming-die, of atapering tube leading therefrom, and a split tubular ejector working in the die and tube.

12. In abushing-machine, the combination with a tapering tube, adapted to register at its smaller end with the hole to be bushed, and into the larger end of which a bushingblank may be inserted, of an ejector slidable through the tube.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JACOB JACOBSEN.

' Witnesses:

SIGNA FE TsKoe, H. G. BATCHELOR. 

